blob: bd3099e7999b7c79dae7e460f44cff1d044ba2f7 [file] [log] [blame]
paul718e3742002-12-13 20:15:29 +00001/* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
3 Free Software Foundation, Inc.
4
5 NOTE: The canonical source of this file is maintained with the GNU C Library.
6 Bugs can be reported to bug-glibc@gnu.org.
7
8 This program is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
11 later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 USA. */
David Lamparter6b0655a2014-06-04 06:53:35 +020022
paul024a7f02005-05-15 14:25:08 +000023#include <zebra.h>
paul718e3742002-12-13 20:15:29 +000024#include "getopt.h"
25
26#if !defined __STDC__ || !__STDC__
27/* This is a separate conditional since some stdc systems
28 reject `defined (const)'. */
29#ifndef const
30#define const
31#endif
32#endif
33
34#include <stdio.h>
35
36/* Comment out all this code if we are using the GNU C Library, and are not
37 actually compiling the library itself. This code is part of the GNU C
38 Library, but also included in many other GNU distributions. Compiling
39 and linking in this code is a waste when using the GNU C library
40 (especially if it is a shared library). Rather than having every GNU
41 program understand `configure --with-gnu-libc' and omit the object files,
42 it is simpler to just do this in the source for each such file. */
43
44#define GETOPT_INTERFACE_VERSION 2
45#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
46#include <gnu-versions.h>
47#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
48#define ELIDE_CODE
49#endif
50#endif
51
52#ifndef ELIDE_CODE
53
54
55/* This needs to come after some library #include
56 to get __GNU_LIBRARY__ defined. */
57#ifdef __GNU_LIBRARY__
58#include <stdlib.h>
59#endif
60
61#ifndef NULL
62#define NULL 0
63#endif
64
65int
66getopt_long (argc, argv, options, long_options, opt_index)
67 int argc;
68 char *const *argv;
69 const char *options;
70 const struct option *long_options;
71 int *opt_index;
72{
73 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
74}
75
76/* Like getopt_long, but '-' as well as '--' can indicate a long option.
77 If an option that starts with '-' (not '--') doesn't match a long option,
78 but does match a short option, it is parsed as a short option
79 instead. */
80
81int
82getopt_long_only (argc, argv, options, long_options, opt_index)
83 int argc;
84 char *const *argv;
85 const char *options;
86 const struct option *long_options;
87 int *opt_index;
88{
89 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
90}
91
92
93#endif /* Not ELIDE_CODE. */
David Lamparter6b0655a2014-06-04 06:53:35 +020094
paul718e3742002-12-13 20:15:29 +000095#ifdef TEST
96
97#include <stdio.h>
98
99int
100main (argc, argv)
101 int argc;
102 char **argv;
103{
104 int c;
105 int digit_optind = 0;
106
107 while (1)
108 {
109 int this_option_optind = optind ? optind : 1;
110 int option_index = 0;
111 static struct option long_options[] =
112 {
113 {"add", 1, 0, 0},
114 {"append", 0, 0, 0},
115 {"delete", 1, 0, 0},
116 {"verbose", 0, 0, 0},
117 {"create", 0, 0, 0},
118 {"file", 1, 0, 0},
119 {0, 0, 0, 0}
120 };
121
122 c = getopt_long (argc, argv, "abc:d:0123456789",
123 long_options, &option_index);
124 if (c == -1)
125 break;
126
127 switch (c)
128 {
129 case 0:
130 printf ("option %s", long_options[option_index].name);
131 if (optarg)
132 printf (" with arg %s", optarg);
133 printf ("\n");
134 break;
135
136 case '0':
137 case '1':
138 case '2':
139 case '3':
140 case '4':
141 case '5':
142 case '6':
143 case '7':
144 case '8':
145 case '9':
146 if (digit_optind != 0 && digit_optind != this_option_optind)
147 printf ("digits occur in two different argv-elements.\n");
148 digit_optind = this_option_optind;
149 printf ("option %c\n", c);
150 break;
151
152 case 'a':
153 printf ("option a\n");
154 break;
155
156 case 'b':
157 printf ("option b\n");
158 break;
159
160 case 'c':
161 printf ("option c with value `%s'\n", optarg);
162 break;
163
164 case 'd':
165 printf ("option d with value `%s'\n", optarg);
166 break;
167
168 case '?':
169 break;
170
171 default:
172 printf ("?? getopt returned character code 0%o ??\n", c);
173 }
174 }
175
176 if (optind < argc)
177 {
178 printf ("non-option ARGV-elements: ");
179 while (optind < argc)
180 printf ("%s ", argv[optind++]);
181 printf ("\n");
182 }
183
184 exit (0);
185}
186
187#endif /* TEST */